OOIR: Observatory of International Research

Papers

(The H4-Index of Journal of Crohns & Colitis is 40. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
P750 Biosimilar Infliximab Switching is Not Associated with Adverse Outcomes: A Real-World Effectiveness Analyses in a National U.S. Cohort of U.S. Military Veterans with Inflammatory Bowel Disease	262
P139 Inflammatory bowel disease and impairment of working life	259
P222 Chronic pain is common in Paediatric Inflammatory Bowel Disease and impacts quality of life	229
OP32 The gut virome-colonizing Orthohepadnavirus genus is associated with ulcerative colitis pathogenesis and induces intestinal inflammation in vivo	225
P709 Endoscopic healing and clinical remission after administration of adalimumab to patients with Crohn’s disease of the small intestine	114
P833 Cervical cancer risk in newly diagnosed ulcerative colitis: a nationwide population-based study	106
P501 Safety of peri-operative biologics in patients with IBD undergoing resective bowel surgery: experiences of a single center cohort	98
P905 Predictive pharmacogenetic risk of pancreatitis in Inflammatory Bowel Disease patients treated with thiopurines: a case-control study from the ENEIDA registry	96
P127 Inflammatory Bowel Disease-associated colorectal cancers: retrospective cohort study from a tertiary centre surveillance programme over 10 years	95
P113 Protein fingerprint biomarkers of collagen remodeling can evaluate fibrogenesis in an in vitro colonic scar-in-a-jar model	71
P149 Novel capillary blood point-of-care test for adalimumab and infliximab trough levels: Effects of abnormal blood conditions on the test result	69
P310 Smoking is not an independent risk factor for surgery in patients with Crohn’s Disease on biologic therapy	58
P294 Assessment of Fatigue and Associated Factors in Patients with Inflammatory Bowel Disease: A Questionnaire-based Study	56
P308 A new endoscopic scoring system corresponding to histological healing using linked color imaging in ulcerative colitis: SOUL study	55
P358 Long-term clinical outcomes of intestinal Behçet’s disease: a 30-year cohort study at a tertiary hospital in South Korea	55
P089 Colonic explant lactate concentration and inflammatory protein secretion in ulcerative colitis	54
P324 Long-term impact of the COVID-19 pandemic on Inflammatory Bowel Disease healthcare utilization: A two-year nationwide update	54
P212 The Impact of Crohn’s Disease in Patients with Colorectal Cancer: A Danish Nationwide Cohort Study, 2009-2019	53
Corrigendum to: ECCO CONFER Investigators, Diagnosis and Outcome of Extranodal Primary Intestinal Lymphoma in Inflammatory Bowel Disease: An ECCO CONFER Case Series	52
P0279 Assessing patient-reported health status in moderate-to-severe Crohn’s Disease and Ulcerative Colitis: Results from the communicating needs and features of IBD experiences (CONFIDE) survey	52
P0435 Comparative analysis between capsule endoscopy and ileocolonoscopy for activity detection in ileal Crohn’s disease. Preliminary results from the CAPITER study, a multicenter study from the Young	52
P551 Platelet-to-lymphocyte ratio index for non-invasive assessment of endoscopic activity in small bowel Crohn’s disease: application and prospective validation.	51
P748 Pharmacokinetics, relative bioavailability, and dose proportionality of a tablet formulation of the sphingosine 1-phosphate-1 receptor modulator VTX002 (formerly OPL-002)	50
P0893 Angiopoietin-like Protein 8 (ANGPTL8) in Inflammatory Bowel Disease and Its Response to Anti-TNFα Therapy; A Prospective Multi Center Study	50
P1288 The Association of Long-term Night Shift Work and Related Circulating Proteins with Inflammatory Bowel Disease: A Prospective Cohort and Multi-omics Study	48

P1244 Differential impact of appendectomy with appendiceal inflammation versus no inflammation on inflammatory bowel disease risk in a population-based cohort	48
P0166 Changes in bone mineral density in young patients with inflammatory bowel diseases	48
P0391 The impact of point of care ultrasound on time to initiating advanced therapy in IBD (GUIDE-IBD): A randomised controlled trial	46
P1252 Prevalence, Incidence and Mortality of Pediatric Inflammatory Bowel Disease in Catalonia	46
P0089 Infra-red microspectroscopy provides quantitative assessment of fibro-inflammation in Crohn’s disease strictures and predicts post-operative recurrence	45
P0406 Complications after ileal pouch-anal anastomosis in patients with Ulcerative Colitis and primary sclerosing cholangitis	45
DOP022 Shared and Distinct Features of the Gut Microbiome in Immune-mediated Inflammatory Diseases: Initial Analysis from the INTEGRATE Cohort Study	44
P0381 Correlation Between Rectal Endoscopic and Histological Involvement and the Prevalence and Severity of Ano-Perineal Lesions in Inflammatory Bowel Disease	44
P0346 Pouch Fistulas: Experience From a Tertiary Center	43
P0453 Intestinal Ultrasound Correlates with Patient-Reported IBD Disability in Ulcerative Colitis: A Step Towards Integrated Monitoring	43
P0483 Assessment of Disease Activity in Pediatric Inflammatory Bowel Disease Using Intestinal Ultrasound: A Comparative Diagnostic Analysis	43
P0292 CD8+ Cell Dominance in Immune Checkpoint Inhibitor-Induced Colitis and Its Heterogeneity Across Endoscopic Features	42
P0250 Circulating blood matrix metalloproteinase (MMP)-10 and 12 can accurately predict mucosal healing in Inflammatory Bowel Disease (IBD) in a multi-centred prospective longitudinal cohort study (20	42
P0818 Addressing unmet needs in adult Inflammatory Bowel Disease care	40
P0742 Real-world efficacy and safety of Upadacitinib in IBD patients. Preliminary data from the Apulian Network for Inflammatory Bowel Disease (AN-IBD)	40
P0551 Diagnostic Accuracy of Low-Cost Blood Test Inflammatory Markers in Severe Ulcerative Colitis	40
P143 Efficacy of the oral tyrosine kinase 2 (TYK2) inhibitor TAK-279 in two preclinical mouse models of colitis	40
Navigating Postoperative Management in Crohn’s Disease: Insights from the PORCSE Study	40